Canelo also shared an image of him stretching in front of a large Mexican flag

The two fighters battled to a controversial draw when they first met in Las Vegas last year

He was handed a six-month suspension by the Nevada State Athletic Commission, forcing the rematch — originally scheduled for May 5 — to be postponed.

But the frustration that followed their first fight in September 2017 — when Golovkin was denied the win many observers felt he'd earned — still hurts the Kazakh KO king.

'It was terrible. It was terrible for me. It was terrible for the people. Of course it was terrible for the sport...for the sport of boxing, because statistics showed I landed more punches,' he told HBO.

'Everybody was very mad because these people, the judges, killed the sport that night. This time, the world will be watching the fight and the judges. Judges hurt the sport of boxing that day. Maybe the judges had a bad day. This is a business.

'It is a new situation for me. This is my first rematch. I'm very excited because this fight is a completely different situation for us and for the fans. They get to see a fight with a real champion, two pound for pound champions. It is new. This is the biggest fight for boxing.'